History of Europe

What is the name of peace treaty that formally ended world war 1 in 1918?

There was no peace treaty that formally ended World War I in 1918. The war was ended by a temporary armistice signed on November 11, 1918. The main peace treaties that ended World War I were the Treaty of Versailles, which was signed on June 28, 1919, between the Allied Powers and Germany, and the Treaty of Saint-Germain, which was signed on September 10, 1919, between the Allied Powers and Austria.